Section 320.160  Service of Documents

Service of any document under the Act or this Part upon any person may be made by personal delivery, certified mail with the return receipt signed by the person or its agent, U.S. regular mail with postage prepaid, email to an email address previously designated by the party for purposes of receiving communications under this Act, or any other verifiable means, such as private carrier, to the following:

a)         an address on file with the Department;

b)         an address on file with the Secretary of State;

c)         an address on file with any other State agency with which the respondent must maintain a current address; or

d)         any other address, including e-mail address, that the Department reasonably calculates to be a true and current address for the person.

(Source:  Added at 50 Ill. Reg. 8918, effective June 18, 2026)